TROY-BILT LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
OperatOr’s Manual
Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty
WARNING
READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL
BEFORE ATTEMPTING TO OPERATE THIS MACHINE.
FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
Form No. 769-06007A
June 7, 2011
Chipper Shredder — Model Series 410 & 420
Model Series 410 Shown
Customer Support
Please do NOT return the machine to the retailer or dealer without first contacting our Customer Support Department.
If you have difficulty assembling this product or have any questions regarding the controls, operation, or maintenance of
this machine, you can seek help from the experts. Choose from the options below:
◊ Visit us on the web at www.troybilt.com
◊ Call a Customer Support Representative at (800) 828-5500 or (330) 558-7220
◊ Write us at Troy-Bilt • P.O. Box 361131 • Cleveland, OH • 44136-0019
Thank you for purchasing a Chipper Shredder manufactured
by Troy-Bilt. It was carefully engineered to provide excellent
performance when properly operated and maintained.
Please read this entire manual prior to operating the equipment.
It instructs you how to safely and easily set up, operate and
maintain your machine. Please be sure that you, and any other
persons who will operate the machine, carefully follow the
recommended safety practices at all times. Failure to do so could
result in personal injury or property damage.
All information in this manual is relative to the most recent
product information available at the time of printing. Review
this manual frequently to familiarize yourself with the machine,
its features and operation. Please be aware that this Operator’s
Manual may cover a range of product specifications for various
models. Characteristics and features discussed and/or illustrated
in this manual may not be applicable to all models. Troy-Bilt
reserves the right to change product specifications, designs and
equipment without notice and without incurring obligation.
If you have any problems or questions concerning the machine,
phone a authorized Troy-Bilt service dealer or contact us directly.
Troy-Bilt’s Customer Support telephone numbers, website
address and mailing address can be found on this page. We want
to ensure your complete satisfaction at all times.
Throughout this manual, all references to right and left side of the
machine are observed from the operating position
The engine manufacturer is responsible for all engine-related
issues with regards to performance, power-rating, specifications,
warranty and service. Please refer to the engine manufacturer’s
Owner’s/Operator’s Manual, packed separately with your
machine, for more information.
Thank You
Record Product Information
Before setting up and operating your new equipment, please
locate the model plate on the equipment and record the
information in the provided area to the right. You can locate the
model plate by standing at the operator’s position and looking
down at the frame below the engine. This information will be
necessary, should you seek technical support via our web site,
Customer Support Department, or with a local authorized service
dealer.
Model NuMber
Serial NuMber
To The Owner
1
2
Safe Operation Practices ........................................ 3
Assembly & Set-Up .................................................. 7
Controls & Features ................................................. 9
Operation ................................................................10
Maintenance & Adjustment .................................12
Service .....................................................................14
Troubleshooting .....................................................16
Replacement Parts .................................................17
Warranty .................................................................21
Spanish ................................................................... 22
Table of Contents
Important Safe Operation Practices
2
3
Training
1. Read, understand, and follow all instructions on the
machine and in the manual(s) before attempting to
assemble and operate. Keep this manual in a safe place for
future and regular reference and for ordering replacement
parts.
2. Be familiar with all controls and their proper operation.
Know how to stop the machine and disengage them
quickly.
3. Never allow children under 16 years of age to operate this
machine. Children 16 and over should read and understand
the instructions and safe operation practices in this manual
and on the machine and be trained and supervised by an
adult.
4. Never allow adults to operate this machine without proper
instruction.
5. Keep bystanders, pets, and children at least 75 feet from
the machine while it is in operation. Stop machine if
anyone enters the area.
6. Never run an engine indoors or in a poorly ventilated area.
Engine exhaust contains carbon monoxide, an odorless
and deadly gas.
7. Do not put hands and feet near rotating parts or in the
feeding chambers and discharge opening. Contact with
the rotating impeller can amputate fingers, hands, and
feet.
8. Never attempt to unclog either the feed intake or discharge
opening, remove or empty bag, or inspect and repair the
machine while the engine is running. Shut the engine off
and wait until all moving parts have come to a complete
stop. Disconnect the spark plug wire and ground it against
the engine.
Preparation
1. Thoroughly inspect the area where the equipment is to
be used. Remove all rocks, bottles, cans, or other foreign
objects which could be picked up or thrown and cause
personal injury or damage to the machine.
2. Always wear safety glasses or safety goggles during
operation and while performing an adjustment or repair,
to protect your eyes. Thrown objects which ricochet can
cause serious injury to the eyes.
3. Wear sturdy, rough-soled work shoes and close-fitting
slacks and shirts. Loose fitting clothes or jewelry can be
caught in movable parts. Never operate this machine
in bare feet or sandals. Wear leather work gloves when
feeding material in the chipper chute.
4. Before starting, check all bolts and screws for proper
tightness to be sure the machine is in safe working
condition. Also, visually inspect machine for any damage at
frequent intervals.
5. Maintain or replace safety and instructions labels, as
necessary.
WARNING: This symbol points out important safety instructions which, if not followed,
could endanger the personal safety and/or property of yourself and others. Read and follow
all instructions in this manual before attempting to operate this machine. Failure to comply
with these instructions may result in personal injury.
When you see this symbol. HEED ITS WARNING!
DANGER: This machine was built to be operated according to the safe operation practices in
this manual. As with any type of power equipment, carelessness or error on the part of the
operator can result in serious injury. This machine is capable of amputating fingers, hands,
toes and feet and throwing debris. Failure to observe the following safety instructions could
result in serious injury or death.
CALIFORNIA PROPOSITION 65
WARNING: Engine Exhaust, some of its constituents, and certain vehicle components
contain or emit chemicals known to State of California to cause cancer and birth defects
or other reproductive harm.
4 Section 2 — important Safe operation practiceS
Safe Handling of Gasoline:
To avoid personal injury or property damage use extreme care
in handling gasoline. Gasoline is extremely flammable and the
vapors are explosive. Serious personal injury can occur when
gasoline is spilled on yourself or your clothes which can ignite.
Wash your skin and change clothes immediately.
a. Use only an approved gasoline container.
b. Never fill containers inside a vehicle or on a truck
or trailer bed with a plastic liner. Always place
containers on the ground away from your vehicle
before filling.
c. When practical, remove gas-powered equipment
from the truck or trailer and refuel it on the ground.
If this is not possible, then refuel such equipment on
a trailer with a portable container, rather than from a
gasoline dispenser nozzle.
d. Keep the nozzle in contact with the rim of the fuel
tank or container opening at all times until fueling is
complete. Do not use a nozzle lock-open device.
e. Extinguish all cigarettes, cigars, pipes and other
sources of ignition.
f. Never fuel machine indoors.
g. Never remove gas cap or add fuel while the engine
is hot or running. Allow engine to cool at least two
minutes before refueling.
h. Never over fill fuel tank. Fill tank to no more than ½
inch below bottom of filler neck to allow space for
fuel expansion.
i. Replace gasoline cap and tighten securely.
j. If gasoline is spilled, wipe it off the engine and
equipment. Move unit to another area. Wait 5
minutes before starting the engine.
k. To reduce fire hazards, keep machine free of grass,
leaves, or other debris build-up. Clean up oil or fuel
spillage and remove any fuel soaked debris.
l. Never store the machine or fuel container inside
where there is an open flame, spark or pilot light
as on a water heater, space heater, furnace, clothes
dryer or other gas appliances.
Operation
1. Do not put hands and feet near rotating parts or in the
feeding chambers and discharge opening. Contact with
the rotating impeller can amputate fingers, hands, and
feet.
2. Before starting the machine, make sure the chipper chute,
feed intake, and cutting chamber are empty and free of all
debris.
3. Thoroughly inspect all material to be shredded and remove
any metal, rocks, bottles, cans, or other foreign objects
which could cause personal injury or damage to the
machine.
4. If it becomes necessary to push material through the
shredder hopper, use a small diameter stick. Do not use
your hands or feet.
5. If the impeller strikes a foreign object or if your machine
should start making an unusual noise or vibration,
immediately shut the engine off. Allow the impeller to
come to a complete stop. Disconnect the spark plug wire,
ground it against the engine and perform the following
steps:
a. Inspect for damage.
b. Repair or replace any damaged parts.
c. Check for any loose parts and tighten to assure
continued safe operation.
6. Do not allow an accumulation of processed material to
build up in the discharge area. This can prevent proper
discharge and result in kickback of material through the
feed opening.
7. Do not attempt to shred or chip material larger than
specified on the machine or in this manual. Personal injury
or machine damage could result.
8. Never attempt to unclog either the feed intake or discharge
opening while the engine is running. Shut the engine off,
wait until all moving parts have stopped, disconnect the
spark plug wire and ground it against the engine before
clearing debris.
9. Never operate without the shredder hopper, chipper chute,
or chute deflector properly attached to the machine.
Never empty or change discharge bag while the engine is
running.
10. Keep all guards, deflectors and safety devices in place and
operating properly.
11. Keep your face and body back and to the side of the
chipper chute while feeding material into the machine to
avoid accidental kickback injuries.
12. Never operate this machine without good visibility or light.
13. Do not operate this machine on a paved, gravel or non-
level surface.
14. Do not operate this machine while under the influence of
alcohol or drugs.
15. Muffler and engine become hot and can cause a burn. Do
not touch.
16. Never pick up or carry machine while the engine is running.
17. If situations occur which are not covered in this manual, use
care and good judgement. Contact Customer Support for
assistance and the name of the nearest service dealer.
Maintenance & Storage
1. Never tamper with safety devices. Check their proper
operation regularly.
2. Check bolts and screws for proper tightness at frequent
intervals to keep the machine in safe working condition.
Also, visually inspect machine for any damage and repair, if
needed.
5Section 2 — important Safe operation practiceS
3. Before cleaning, repairing, or inspecting, stop the engine
and make certain the impeller and all moving parts have
stopped. Disconnect the spark plug wire and ground it
against the engine to prevent unintended starting.
4. Do not change the engine governor settings or overspeed
the engine. The governor controls the maximum safe
operating speed of the engine.
5. Maintain or replace safety and instruction labels, as
necessary.
6. Follow this manual for safe loading, unloading,
transporting, and storage of this machine.
7. Never store the machine or fuel container inside where
there is an open flame, spark or pilot light such as a water
heater, furnace, clothes dryer, etc.
8. Allow machine to cool at least 5 minutes before storing.
9. Always refer to the operator’s manual for proper
instructions on off-season storage.
10. If the fuel tank has to be drained, do this outdoors.
11. Observe proper disposal laws and regulations for gas, oil,
etc. to protect the environment.
12. According to the Consumer Products Safety Commission
(CPSC) and the U.S. Environmental Protection Agency (EPA),
this product has an Average Useful Life of seven (7) years,
or 60 hours of operation. At the end of the Average Useful
Life have the machine inspected annually by an authorized
service dealer to ensure that all mechanical and safety
systems are working properly and not worn excessively.
Failure to do so can result in accidents, injuries or death.
Do not modify engine
To avoid serious injury or death, do not modify engine in any
way. Tampering with the governor setting can lead to a runaway
engine and cause it to operate at unsafe speeds. Never tamper
with factory setting of engine governor.
Notice Regarding Emissions
Engines which are certified to comply with California and federal
EPA emission regulations for SORE (Small Off Road Equipment)
are certified to operate on regular unleaded gasoline, and
may include the following emission control systems: Engine
Modification (EM), Oxidizing Catalyst (OC), Secondary Air
Injection (SAI) and Three Way Catalyst (TWC) if so equipped.
Spark Arrestor
WARNING: This machine is equipped with an
internal combustion engine and should not be used
on or near any unimproved forest-covered,
brushcovered or grass-covered land unless the
engine’s exhaust system is equipped with a spark
arrestor meeting applicable local or state laws (if
any).
If a spark arrestor is used, it should be maintained in effective
working order by the operator. In the State of California the
above is required by law (Section 4442 of the California Public
Resources Code). Other states may have similar laws. Federal laws
apply on federal lands.
A spark arrestor for the muffler is available through your
nearest engine authorized service dealer or contact the service
department, P.O. Box 361131 Cleveland, Ohio 44136-0019.
6 Section 2 — important Safe operation practiceS
Safety Symbols
This page depicts and describes safety symbols that may appear on this product. Read, understand, and follow all instructions on the
machine before attempting to assemble and operate.
Symbol Description
READ THE OPERATOR’S MANUAL(S)
Read, understand, and follow all instructions in the manual(s) before attempting to
assemble and operate
WARNING— ROTATING BLADES
Keep hands out of inlet and discharge openings while machine is running. There are rotating
blades inside
BYSTANDERS
Keep bystanders, pets, and children at least 75 feet from the machine while it is in operation.
Stop machine if anyone enters the area.
WARNING— THROWN DEBRIS
Never operate without the chute deflector properly attached to the machine.
EYE PROTECTION
Always wear safety glasses or safety goggles when operating this machine.
WARNING: Your Responsibility—Restrict the use of this power machine to persons who read, understand and
follow the warnings and instructions in this manual and on the machine.
SAVE THESE INSTRUCTIONS!
Assembly & Set-Up
3
7
Contents of Carton
• One Chipper Shredder • One Operator’s Manual • One Engine Operator’s Manual
• One Tow Bar • One Bag • One Safety Glasses
• One Bottle of Oil
Assembly
NOTE: This unit is shipped without gasoline or oil in the engine.
Fill up gasoline and oil as instructed in the accompanying engine
manual BEFORE operating your chipper shredder.
Chipper Chute (Model Series 420 Only)
For shipping reasons, the unit is crated with its chipper chute in a
raised position. To pivot it downward, proceed as follows:
1. Pull the spring latch upward.
2. Gently pivot the chipper chute down until it clicks into the
lock rod. See Fig. 3-1.
WARNING: Never operate the chipper shredder
with the chipper chute in the raised position. Doing
so may result in property damage or serious injury
to the operator or bystanders.
B
A
Figure 3-1
Bag
To attach the bag:
1. Place the opening of the bag completely over the chute
deflector. See Fig. 3-2.
2. Position the bag so that the wing knobs which secure the chute
deflector to the impeller housing are completely covered.
3. Pull on the draw-strap until the bag is tight around chute
deflector opening.
Figure 3-2
8 Section 3 — ASSembly & Set-Up
Set-Up
Gas and Oil Fill-Up
Refer to the separate engine owner’s manual for additional
engine information.
1. Add oil provided before starting unit for the first time out
of the box. Refer to the separate engine owner’s manual for
information regarding adding and checking the oil.
2. Service the engine with gasoline as instructed in the
separate engine owner’s manual.
WARNING: Use extreme care when handling
gasoline. Gasoline is extremely flammable and the
vapors are explosive. Never fuel the machine
indoors or while the engine is hot or running.
Extinguish cigarettes, cigars, pipes and other
sources of ignition.
WARNING: Never fill fuel tank indoors with engine
running or until the engine has been allowed to cool
for at least two minutes after running.
Tow Bar
To attach the tow bar:
1. Remove the spring pin and clevis pin from the end of the
tongue. See Fig. 3-3.
2. Insert the tongue into the base.
3. Reinse r t the clevis pin thro ugh aligning h oles in b oth the tongue
and the base. Fasten with the spring pin to secure. See Fig.
3-4.
1
Figure 3-3
Figure 3-4
2
3
3
Controls and Features
4
9
Figure 4-1
Chipper Chute
Handle
Hopper
Recoil Starter
Tow Bar
Model Series 420 Shown
Lock Rod
Spring Latch
Chipper Chute
Branches up to two inches (model series 410) or three inches
(model series 420) in diameter may be fed into the chipper chute
for chipping.
Hopper
Leaves, twigs, and branches up to 1/2-inch in diameter may be
placed into the hopper for shredding. See Fig. 4-1.
IMPORTANT: Never place branches with a diameter greater than
1/2-inch in the hopper. Doing so can result in serious damage to
your unit’s shredder blade, flails or impeller.
Tow Bar
Use the tow bar to tow the chipper shredder behind a tractor to
a job site.
Handle
Use the handle when manually transporting the chipper
shredder.
Recoil Starter
The recoil starter is located on the engine. Pull the recoil starter
to start engine.
Engine Controls
See the separate Engine Operator’s Manual packed with your
unit for the location and function of the engine controls.
Spring Latch (Model Series 420 Only)
The spring latch is located on the top of the hopper. It is used to
release or lock the chipper chute in a raised position for storage
or for transporting. See Fig. 4-1.
WARNING: Never operate the chipper shredder
with the chipper chute in the raised position. Use
the spring latch to lower the chipper chute into the
operating position before starting the engine.
Lock Rod (Model Series 420 Only)
The lock rod is located on the chipper chute support. It is used
to release or lock the chipper chute in a lowered position for
operation.
Operation
5
10
WARNING: The operation of any chipper shredder
can result in foreign objects being thrown into the
eyes, which can damage your eyes severely. Always
wear the safety glasses provided with this unit or
eye shields before chipping or shredding and while
performing any adjustments or repairs.
Starting Engine
IMPORTANT: Because this manual covers several different model
units, different starting instructions may apply to your particular
engine. Some engines may have a fuel petcock, some may not.
Some engines may have On/Off switches, other may not. Some
units will utilize a choke system, while others will require priming.
These factors depend on what make and model engine comes
with your particular unit. For these reasons, please refer to the
Engine Operator’s Manual for the correct starting procedure.
Basic Starting Procedure:
1. Attach spark plug wire to spark plug. Make certain the
metal cap on the end of the spark plug is fastened securely
over metal tip on the spark plug.
2. Open fuel shut-off valve (if equipped) and make sure the
On/Off switch is in the On position (if equipped).
3. Move choke control lever to CHOKE position, if equipped.
See Fig. 5-1. If the unit has a primer, prime the motor as
instructed in the Engine Operator’s Manual.
NOTE: A warm engine may not require choking or priming.
4. Move throttle control lever to FAST position (if equipped). See
Fig. 5-1.
5. Grasp starter handle and pull rope out slowly until engine
reaches start of compression cycle (rope will pull slightly
harder at this point).
NOTE: A “clanking” noise may be heard when pulling the
starter rope. It is completely normal and does NOT indicate
a malfunction of any kind.
6. Pull rope with a rapid, continuous, full arm stroke. Keep a
firm grip on starter handle. Let rope rewind slowly.
7. Repeat the previous steps until engine starts. When engine
starts, move choke control gradually to RUN position until
the engine is running smoothly.
WARNING: Never run the engine indoors or in a
poorly ventilated area. Engine exhaust contains
carbon monoxide, an odorless and deadly gas.
Stopping Engine
1. Move throttle control lever to STOP position (if equipped) or
push rocker switch to OFF. See Fig. 5-2.
NOTE: See your Engine Operator’s Manual packed with
your unit for more detailed instructions.
CAUTION: Never stop the engine by moving the
choke lever into the CHOKE position. Backfire, fire or
engine damage could result.
Figure 5-1
Figure 5-2
11Section 5 — operation
Chipping
WARNING: Never operate the chipper shredder
without chipper chute lowered into the operating
position.
Branches up to two inches (model series 410) or three inches
(model series 420) in diameter can be fed into the chipper chute.
Observe the following guidelines when chipping branches:
• Keep both hands firmly on the branch as you feed it into
the chipper chute.
• Never feed more than one branch into the chipper chute at
a time.
• Never feed anything other than branches (or wood) into
the chipper chute.
• Apply intermittent pressure (force, in short pulses) while
feeding larger branches into the chipper chute, to avoid
bogging or stalling the engine.
IMPORTANT: Never feed branches with a diameter greater
than two (2) inches (Model Series 410) or three (3) inches
(model series 420) into the chipper chute. Doing so can
result in serious damage to your unit’s chipper blades, flails
or impeller.
NOTE: For best performance, always operate the unit with
sharp chipper blades. If a noticeable loss in performance is
encountered while chipping branches, the chipper blades
should be replaced.
Emptying the Bag
1. Stop engine.
2. Squeeze the locking buckle to release the bag’s draw-strap
before loosening it from the chute deflector. See Fig. 5-3.
3. Empty the bag and reattach to the chute deflector opening.
Refer to the “Set-Up & Adjustments” section of this manual.
Shredding
Yard waste such as leaves and pine needles can be placed in
the hopper for shredding. After material has been processed by
the shredder blade and flails, it will be forced out of the chute
deflector, and, if attached, into a debris collection bag.
Observe the following guidelines when shredding yard debris:
• Never attempt to shred material other than normal yard
debris (leaves, twigs, pine cones, etc.).
• Avoid shredding fibrous plants such as tomato vines until
they are thoroughly dried out. Fresh vines do not shred
well and tend to wrap themselves around the impeller and
flails.
• Place reasonable amounts of debris into the hopper at a
time. Do not overload the hopper.
• Allow the material in the hopper to be drawn into the
blades and shredded before adding additional debris
to the hopper. Failure to due so may result in a clogged
hopper, clogged chute deflector or a stalled engine.
• Avoid placing twigs longer than 24 inches into the hopper.
Twigs longer than 24 inches may result in a clogged
hopper.
IMPORTANT: Never place branches with a diameter greater
than 1/2-inch in the hopper. Doing so can result in serious
damage to the unit’s shredder blade, flails or impeller.
Clearing the Hopper
Should the hopper become clogged with debris during
operation, proceed as follows:
1. Grasp the handle with both hands and gently agitate the
chipper shredder to help loosen debris, drawing it into the
impeller.
If the clog does not clear, proceed as follows:
1. Stop engine.
2. Use your hands to remove any debris found near the top of
the hopper.
3. Use a branch (or other available device, i.e. broomstick) to
dislodge debris located toward the base of the hopper.
4. Restart engine.
NOTE: If you’re unable to pull the starter rope as a result of
accumulated debris near the impeller, follow instructions
under the heading Cleaning the Reduction Chamber in the
“Maintenance & Adjustments” section of this manual.
Figure 5-3
Maintenance & Adjustments
6
12
Equipment Care
• Clean the chipper shredder thoroughly after each use.
• Wash bag periodically with water. Allow to dry thoroughly
in shade.
• If the reduction chamber becomes clogged, remove and
clean as instructed below.
NOTE: Cleaning with a forceful spray of water is not
recommended as it could contaminate the fuel system.
Engine Care
Refer to the Maintenance section of the Engine Operator’s
manual packed with your unit. Read and follow instructions
carefully.
• Check engine oil level before each use as instructed in the
separate engine manual.
• Clean or replace air cleaner every 25 hours under normal
conditions. Clean every few hours under extremely dusty
conditions. To service the air cleaner, refer to the engine
manual.
• The spark plug should be cleaned and the gap reset once
a season. Check engine manual for correct plug type and
gap specifications.
• Clean engine regularly with a cloth or brush. Keep the
top of the engine clean to permit proper air circulation.
Remove all grass, dirt, and combustible debris from muffler
area.
Maintenance
General Recommendations
• Always observe safety rules when performing any
maintenance.
• The warranty on this chipper shredder does not cover
items that have been subjected to operator abuse or
negligence. To receive full value from warranty, operator
must maintain the equipment as instructed here.
• Changing of engine-governed speed will void engine
warranty.
• All adjustments should be checked at least once each
season.
• Periodically check all fasteners and make sure these are
tight.
WARNING: Always stop engine, disconnect spark
plug, and ground against engine before, cleaning,
lubricating, or performing any type of maintenance
on your machine.
Lubrication
1. Lubricate the chip per chute hinge a wi th light oil once a season .
2. Lubricate the pivot points on the chute deflector with light
oil once a season.
3. Follow the separate engine manual packed with your unit
for engine lubrication instructions.
13Section 6 — Maintenance & adjuStMentS
3. Remove the hairpin clip from the clevis pin which extends
through the housing and shredder screen. See Fig. 6-1B.
Remove clevis pin.
4. Pivot the shredder screen upward. See Fig. 6-1C. Clean the
surrounding area by scraping away debris.
5. Confirm that the spark plug wire is disconnected and away
from spark plug. Pull on the starter rope two-to-three
times to purge any remaining debris from the reduction
chamber.
6. When the area is cleaned, pivot the shredder screen
downward and re-secure with the clevis pin and hairpin
clip removed earlier.
7. Reattach the debris collection bag to the chute deflector, if
desired.
Cleaning The Reduction Chamber
WARNING: The impeller’s shredder blade and
chipper blades are sharp. Wear leather work gloves
to protect your hands when cleaning out the
reduction chamber.
If the reduction chamber becomes clogged with debris, the
shredder screen can be pivoted upward so that you can clean the
surrounding area. To do so, proceed as follows:
1. Stop engine, disconnect spark plug, and make certain the
chipper shredder has come to a complete stop.
WARNING: The muffler and surrounding area will
be hot if the engine has been running. Use caution
and protect your hands if working near the muffler.
2. If attached, remove debris bag. Remove the two wing knobs
on either side of the chute deflector and pivot the chute
deflector upward. See Fig. 6-1A.
A
C
B
Figure 6-1
Service
7
14
7. Install a replacement blade (Part No. 742-0544) with the
hardware removed earlier or sharpen.
IMPORTANT: When sharpening the blade, protect hands by
using gloves. Follow the original angle of grind and make
sure to remove an equal amount from each blade.
8. To replace the other blade, rotate the impeller to expose
the second blade and repeat the steps above.
NOTE: Make certain blades are reassembled with the sharp
edge outward (toward the chipper chute). Torque hardware
to between 20 ft.-lbs and 25 ft.-lbs.
Shredder Blade
WARNING: The shredder blade is sharp. Wear
leather work gloves to protect your hands.
1. Stop engine, disconnect spark plug, and make certain that
all moving parts have come to a complete stop.
2. Remove the two flange nuts (and hex bolts) which secure
the hopper support bracket to the impeller housing. Retain
the hardware. See Fig. 7-2.
3. Pivot the shredder screen upward as instructed under the
heading Cleaning the Reduction Chamber.
Blade Care
Chipper Blades
WARNING: The impeller’s chipper blades are
sharp. Wear leather work gloves to protect your
hands.
1. Stop engine, disconnect spark plug, and make certain the
chipper shredder has come to a complete stop.
2. Pivot the shredder screen upward as instructed under the
heading Cleaning the Reduction Chamber.
3. Remove the chipper chute support brace from the frame
by removing the two hex bolts and saddle washers which
secure it. See Fig. 7-1A.
4. Remove the chipper chute by removing three hex nuts and
washers which secure it to the impeller housing. See Fig.
7-1B.
5. Rotate the impeller by hand until one of the two chipper
blades is visible through the impeller housing opening.
6. Remove the blade by removing the internal hex screws,
lock washers and hex nuts which secure it to the impeller.
See Fig. 7-1C. Retain the hardware.
NOTE: Use a 3/16” hex key (Allen) wrench on the outside of
the blade and a 1/2” box (or socket) wrench on the inside of
the impeller. Hold the Allen wrench stationary and rotate
the box (or socket) wrench to loosen the nut.
Figure 7-1
Figure 7-2
A
C
B
Model Series CS 3210 Shown
15Section 7 — Service
4. Remove six flange nuts which secure hopper inlet guide to
impeller housing. See Fig. 7-3A.
5. Carefully separate the hopper assembly from the impeller
housing and set it aside.
6. Insert a piece of wood into the chute deflector opening to
stabilize the impeller and prevent it from rotating when
removing the shredder blade.
7. Remove the two internal hex screws, hex lock nuts, and
lock washers which secure the shredder blade to the
impeller. See Fig. 7-3B.
NOTE: Use a 3/16” hex key (Allen) wrench on the outside
of the shredder blade and a 1/2” box (or socket) wrench
on the inside of the shredder blade. Hold the Allen wrench
stationary and rotate the box (or socket) wrench to loosen
the nut.
8. Remove the hex bolt, lock washer, and flat washer to
completely free shredder blade. See Fig. 7-3C.
IMPORTANT: If sharpening the blade for reuse, follow
the original angle of grind as a guide. Make certain each
cutting edge receives an equal amount of grinding to
prevent an unbalanced blade. Remove metal from the
heavy side until it is balanced evenly.
IMPORTANT: When reassembling the blade, tighten center
bolt to between 45 ft.-lbs and 58 ft.-lbs and the two out
bolts to between 20 ft.-lbs and 25 ft.-lbs.
Off-Season Storage
• Allow the unit to run and clear out all debris for a short
time before shutting the unit down before storage.
• When storing the chipper shredder in an unventilated or
metal storage shed, care should be taken to rustproof the
non-painted surfaces. Using a light oil or silicone, coat the
equipment, especially any springs, bearings, and cables.
• Remove all dirt from exterior of engine and equipment.
• Follow lubrication recommendations.
• Refer to engine manual for correct engine storage
instructions.
• Store equipment in a clean, dry area. Do not store in an
area where equipment is present that may use a pilot light
or has a component that can create a spark.
Figure 7-3
A
C
B
Trouble sho oting
8
16
Problem Cause Remedy
Engine Fails to start 1. Throttle lever (if equipped) not in correct
starting position.
2. Engine switch (if equipped) in OFF position.
3. Spark plug wire disconnected.
4. Choke not in CHOKE position (if equipped).
5. Fuel tank empty or stale fuel.
6. Fuel shut-off valve closed (if equipped).
7. Faulty spark plug.
8. Bag/chute switch button is not fully
depressed.
1. Move throttle lever to FAST or START
position.
2. Move engine switch to ON position.
3. Connect wire to spark plug.
4. Move choke lever to CHOKE position.
5. Fill tank with clean, fresh gasoline.
6. Turn on fuel shut-off valve.
7. Clean, adjust gap, or replace.
8. Make certain the bag is correctly secured,
and the bag/chute switch button is fully
depressed.
Engine runs erratic 1. Spark plug boot loose.
2. Unit running on CHOKE (if equipped).
3. Blocked fuel line or stale fuel.
4. Low engine RPM.
5. Water or dirt in fuel system.
6. Dirty air cleaner.
7. Carburetor out of adjustment.
1. Connect and tighten spark plug boot.
2. Move choke lever to OFF position.
3. Clean fuel line; fill tank with clean, fresh
gasoline.
4. Always run engine at full throttle (if
equipped).
5. Drain fuel tank. Refill with fresh fuel.
6. Refer to engine manual.
7. See authorized service dealer.
Engine overheats 1. Engine oil level low.
2. Dirty air cleaner.
1. Fill crankcase with proper oil.
2. Refer to engine manual.
Occasional skips
(hesitates) at
high speed
1. Spark plug gap too close.
2. Carburetor idle mixture adjustment
improperly set.
1. Remove spark plug and adjust gap to .030”.
2. See authorized service dealer.
Excessive Vibration 1. Loose parts or damaged impeller. 2. See authorized service dealer.
Unit does not discharge 1. Discharge area clogged.
2. Foreign object lodged in impeller.
3. Low engine RPM.
4. Vacuum bag is full.
1. Stop engine immediately and disconnect
spark plug wire. Clean flail screen and inside
of discharge opening.
2. Stop engine and disconnect spark plug wire.
Remove lodged object.
3. Always run engine at full throttle.
4. Empty bag.
Rate of discharge slows
considerably or composition
of discharged material
changes
1. Low engine RPM.
2. Chipper blade dull.
1. Always run engine at full throttle.
2. Replace chipper blade or see your authorized
service dealer.
Replacement Parts
9
17
Component Part Number and Description
942-04050 Shredder Blade
942-0544B Chipper Blade
719-04308 Flail Blade (3 total)
634-04627 10 x 4.0 Pneumatic Wheel with Bearings
Phone (800) 828-5500 or (330) 558-7220 to order replacement parts or a complete Parts Manual (have your full model number and serial
number ready). Parts Manual downloads are also available free of charge at www.troybilt.com.
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19Section 10 — noteS
20 Section 10 — noteS
MANUFACTURER’S LIMITED WARRANTY FOR
GDOC-100020 REV. A
The limited warranty set forth below is given by Troy-Bilt LLC with
respect to new merchandise purchased and used in the United States
and/or its territories and possessions, and by MTD Products Limited
with respect to new merchandise purchased and used in Canada and/
or its territories and possessions (either entity respectively, “Troy-
Bilt”).
“Troy-Bilt” warrants this product (excluding its Normal Wear Parts
and Attachments as described below) against defects in material and
workmanship for a period of two (2) years commencing on the date
of original purchase and will, at its option, repair or replace, free of
charge, any part found to be defective in materials or workmanship.
This limited warranty shall only apply if this product has been
operated and maintained in accordance with the Operator’s Manual
furnished with the product, and has not been subject to misuse,
abuse, commercial use, neglect, accident, improper maintenance,
alteration, vandalism, theft, fire, water, or damage because of other
peril or natural disaster. Damage resulting from the installation or use
of any part, accessory or attachment not approved by Troy-Bilt for use
with the product(s) covered by this manual will void your warranty as
to any resulting damage.
Normal Wear Parts are warranted to be free from defects in material
and workmanship for a period of thirty (30) days from the date of
purchase. Normal wear parts include, but are not limited to items
such as: batteries, belts, blades, blade adapters, tines, grass bags,
wheels, rider deck wheels, seats, snow thrower skid shoes, friction
wheels, shave plates, auger spiral rubber and tires.
Attachments — Troy-Bilt warrants attachments for this product
against defects in material and workmanship for a period of one (1)
year, commencing on the date of the attachment’s original purchase
or lease. Attachments include, but are not limited to items such as:
grass collectors and mulch kits.
HOW TO OBTAIN SERVICE: Warranty service is available, WITH
PROOF OF PURCHASE, through your local authorized service dealer.
To locate the dealer in your area:
In the U.S.A.
Check your Yellow Pages, or contact Troy-Bilt LLC at P.O. Box 361131,
Cleveland, Ohio 44136-0019, or call 1-866-840-6483,
1-330-558-7220 or log on to our Web site at www.troybilt.com.
In Canada
Contact MTD Products Limited, Kitchener, ON N2G 4J1, or call 1-800-
668-1238 or log on to our Web site at www.mtdcanada.com.
This limited warranty does not provide coverage in the following
cases:
a. The engine or component parts thereof. These items may carry a
separate manufacturer’s warranty. Refer to applicable manufac-
turer’s warranty for terms and conditions.
b. Log splitter pumps, valves, and cylinders have a separate one-
year warranty.
c. Routine maintenance items such as lubricants, filters, blade
sharpening, tune-ups, brake adjustments, clutch adjustments,
deck adjustments, and normal deterioration of the exterior finish
due to use or exposure.
d. Service completed by someone other than an authorized service
dealer.
e. Troy-Bilt does not extend any warranty for products sold or
exported outside of the United States and/or Canada, and their
respective possessions and territories, except those sold through
Troy-Bilt’s authorized channels of export distribution.
f. Replacement parts that are not genuine Troy-Bilt parts.
g. Transportation charges and service calls.
h. Troy-Bilt does not warrant this product for commercial use.
No implied warranty, including any implied warranty of
merchantability or fitness for a particular purpose, applies after
the applicable period of express written warranty above as to the
parts as identified. No other express warranty, whether written or
oral, except as mentioned above, given by any person or entity,
including a dealer or retailer, with respect to any product, shall
bind Troy-Bilt. During the period of the warranty, the exclusive
remedy is repair or replacement of the product as set forth above.
The provisions as set forth in this warranty provide the sole and
exclusive remedy arising from the sale. Troy-Bilt shall not be liable
for incidental or consequential loss or damage including, without
limitation, expenses incurred for substitute or replacement lawn
care services or for rental expenses to temporarily replace a
warranted product.
Some states do not allow the exclusion or limitation of incidental
or consequential damages, or limitations on how long an implied
warranty lasts, so the above exclusions or limitations may not apply
to you.
In no event shall recovery of any kind be greater than the amount of
the purchase price of the product sold. Alteration of safety features of
the product shall void this warranty. You assume the risk and liability
for loss, damage, or injury to you and your property and/or to others
and their property arising out of the misuse or inability to use the
product.
This limited warranty shall not extend to anyone other than the
original purchaser or to the person for whom it was purchased as a
gift.
HOW STATE LAW RELATES TO THIS WARRANTY: This limited
warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.
IMPORTANT: Owner must present Original Proof of Purchase to
obtain warranty coverage.
Troy-Bilt LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-866-840-6483, 1-330-558-7220
MTD Canada Limited - KITCHENER, ON N2G 4J1; Phone 1-800-668-1238
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